ITEM NAME:9Pcs Guitar bass neck bridge screw truss rod adjustment wrench set FT Specifications: Material: Carbon Steel Gauge: 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, 1/20in, 1/8in, 3/16in Package List: 1 * Set of Wrench ï ¼Ë†guitar not included.ï ¼â€°.1 Set of Wrench ï ¼Ë†guitar not included.